Spring Security Auth Server XSS via unencoded consent page (7.0.07.0.6)
CVE-2026-47877 Published on August 27, 2026
Spring Security Authorization Server Default Consent Page is vulnerable to Cross-Site Scripting (XSS)
Spring Security Authorization Server's default consent page renders user-controlled values without HTML entity encoding.
Spring Security 7.1.0
Spring Security 7.0.0 - 7.0.6
Vulnerability Analysis
CVE-2026-47877 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-47877 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-47877
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Affected Versions
Spring Security:- Version 7.1.0 is affected.
- Version 7.0.0, <= 7.0.6 is affected.